CN109175253A - A kind of heat preservation insert of metal casting mould - Google Patents
A kind of heat preservation insert of metal casting mould Download PDFInfo
- Publication number
- CN109175253A CN109175253A CN201811318104.1A CN201811318104A CN109175253A CN 109175253 A CN109175253 A CN 109175253A CN 201811318104 A CN201811318104 A CN 201811318104A CN 109175253 A CN109175253 A CN 109175253A
- Authority
- CN
- China
- Prior art keywords
- shell
- heat preservation
- casting
- feeding
- die ontology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/061—Materials which make up the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/065—Cooling or heating equipment for moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of heat preservation insert of metal casting mould, including shell and lid, the shell is open-topped cavity body structure, is filled with thermal insulation material, opening face of the cover cap together in shell in the cavity；The shell is embedded in die ontology, and side is designed with the shape with die ontology；The a part in housing bottom composition feeding a casting channel, forms complete feeding a casting channel with die ontology.It can slow down casting in the heat dissipation of Feeding channel position, delay the turn-off time of Feeding channel, guarantee the feeding effect at the thick big position of casting.
Description
Technical field
The present invention relates to metal casting moulding, and in particular to a kind of heat preservation insert of metal casting mould.
Background technique
During permanent mold casting, molten metal carries out feeding to casting by dead head, and casting realizes consecutive solidification.But
Often due to the particularity of casting structure, locally will appear thick big position, and since thick big position solidification is slower, usually thick big position
Feeding channel solidified cutting, at this moment and thick big position itself solidification completely not yet will go out at the thick big position of casting
The casting shrink defects such as existing shrinkage cavity shrinkage porosity.It generally solves the problems, such as this to consider to increase by one group at thick big position in mold design
It is cooling, it allows it to realize quickly solidification, or increase Feeding channel, delays the turn-off time of Feeding channel, be advantageously implemented thickness
The consecutive solidification at big position.But frequent situation is the limitation due to product or mould structure, the cooling at thick big position can not cloth
It sets or Feeding channel can not also increase, casting is caused shrinkage cavity or local leakage again and again occur, not only the production cost increases,
Many troubles also are brought to casting volume production simultaneously.
CN105880485A discloses a kind of turbine case casting method, logical in feeding a casting for the casting of turbine case
Profile-followed heat insulating block is placed in the outside in road, and is bonded heat insulating block with the feeding a casting channel, and the heat insulating block includes floating bead, resistance to
Fiery aggregate, flaxen fiber, refractory clay, bonding agent and water.Although the setting of heat insulating block is so that casting dissipating in Feeding channel position
Heat slows down, and extends setting time of the casting at Feeding channel, but since heat insulating block needs to be bonded with feeding a casting channel,
Therefore heat insulating block needs to be made fixed shape, and existing many thermal insulation materials are in granular form or gel, cannot be directly fixed on
Feeding channel periphery.Also, due to the limitation of product or mould structure, the arrangement space of Feeding channel is limited, so that heat insulating block
Size be restricted, and then influence heat insulation effect.
Summary of the invention
The object of the present invention is to provide a kind of heat preservation inserts of metal casting mould, and it is logical in feeding can to slow down casting
The heat dissipation of road position delays the turn-off time of Feeding channel, guarantees the feeding effect at the thick big position of casting.
The heat preservation insert of metal casting mould of the present invention, including shell and lid, the shell are opened for top
The cavity body structure of mouth, the cavity is interior to be filled with thermal insulation material, opening face of the cover cap together in shell；The shell is embedded at
In die ontology, side is designed with the shape with die ontology；The a part in housing bottom composition feeding a casting channel, with mold
Ontology forms complete feeding a casting channel.
Further, the thermal insulation material is one of fire clay, ceramic powder, heat-preservation cotton and heat preservation sand.
Further, the thermal insulation material is fire clay.
Further, the lid is equipped with horizontal-extending installation trunnion, is consolidated lid and die ontology using fastener
It is fixed.
Further, the wall thickness of the shell is not less than 5mm.
Further, the shell is identical as the material of die ontology.
Further, the material of the shell is wolfram steel.
Compared with prior art, the present invention has the following advantages:
1, the present invention by filling thermal insulation material in the housing, and feeding a casting channel is collectively formed in shell and die ontology,
The setting of thermal insulation material has slowed down heat dissipation of the casting at Feeding channel position, has delayed the turn-off time of Feeding channel, thus
Big position thick to casting carries out feeding, realizes consecutive solidification, effectively prevents radiating because of Feeding channel too fast, Feeding channel solidification
It disconnects, so that the thick big position of casting generates shrinkage cavity or shrinkage defect.
2, housing side of the invention and die ontology design with the shape, bottom directly and molten metal contacts, with die ontology
Feeding a casting channel is collectively constituted, by the way that cavity is arranged on shell, fills thermal insulation material in the cavity, so that thermal insulation material
Selection has diversity, is not limited by arrangement space and structure, while the replacement of thermal insulation material is high-efficient, easy to operate.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the decomposition diagram of Fig. 1；
Fig. 3 is the structural schematic diagram of the shell filled with thermal insulation material of the invention；
Fig. 4 is the top view of shell of the invention；
Fig. 5 is the A-A cross-sectional view of Fig. 4；
Fig. 6 is the structural schematic diagram of cover board of the invention；
Fig. 7 is work assembling schematic diagram of the invention.
In figure, 1-shell, 11-cavitys, 2-lids, 21-installation trunnions, 22-installation through-holes, 3-thermal insulation materials,
4-die ontologies, 5-installation bolts, D-wall thickness.
Specific embodiment
It elaborates with reference to the accompanying drawing to the present invention.
Referring to Fig. 1 to Fig. 6, shown in metal casting mould heat preservation insert, including shell 1 and lid 2, the shell
1 is open-topped cavity body structure, is filled with thermal insulation material 3 in the cavity 11, the lid 2 is covered on the opening face of shell 1；
1 side of shell and die ontology 4 design with the shape, and bottom and die ontology 4 form feeding a casting channel.Referring to Fig. 7, specifically
In use, shell 1 is embedded in die ontology 4,1 side of shell and die ontology 4 design with the shape, ensure that making for heat preservation insert
With stability, then thermal insulation material 3 is filled to the cavity 11 of shell 1, after the completion of filling, then lid 2 is covered on shell 1
Opening face.When casting metal, 1 bottom of shell forms a part in feeding a casting channel, is formed completely with die ontology 4
Feeding a casting channel, the thermal insulation material in cavity 11 will slow down heat dissipation of the casting at Feeding channel position, delay feeding logical
The turn-off time in road realizes consecutive solidification so that big position thick to casting carries out feeding, effectively prevents radiating because of Feeding channel
Too fast, Feeding channel solidification disconnects, so that the thick big position of casting generates shrinkage cavity or shrinkage defect.
The thermal insulation material 3 is one of fire clay, ceramic powder, heat-preservation cotton and heat preservation sand, when specifically used, according to casting
Part structure and feeding require to select suitable thermal insulation material.
The thermal insulation material 3 is fire clay, and refractory day tools have the characteristics that cheap, easy manufacture and heat insulation effect are excellent.
The fire clay of powdery is tempered using preceding needs, in liquid it is thick after be filled, scraped after the filling of cavity 11 is full with scraper plate
Flat, pre-heating drying, until fixed block of the fire clay in sintering, then lid closing lid body 2 fixes fire clay fixed block.
The lid 2 is equipped with horizontal-extending installation trunnion 21, and the installation trunnion 21 is equipped with installation through-hole 22, adopts
The installation through-hole 22 on installation trunnion 21 is passed through with installation bolt 5 to be spirally connected with die ontology 4, realizes lid 2 and die ontology 4
Fixation, lid 2 can prevent in cavity 11 thermal insulation material 3 to be detached from, and ensure that the heat insulation effect of heat preservation insert.Pass through installation
Bolt 5 realizes the fixation of lid 2 and die ontology 4, easy to disassemble, improves the efficiency of replacement thermal insulation material, and it is convenient to operate.
The wall thickness D of the shell 1 is not less than 5mm, if shell wall thickness D setting is smaller, when high-temperature liquid metal passes through feeding
When channel, shell is easy to crack under high temperature action, influences the service life for keeping the temperature insert.
The shell 1 is identical as the material of die ontology 4, guarantees the heat insulation effect of heat preservation insert.In order to further increase
Heat insulation effect selects manufacture material of the wolfram steel as shell 1.
Still there are many embodiment, all technical sides formed using equivalents or equivalent transformation by the present invention
Case is within the scope of the present invention.
Claims (7)
1. a kind of heat preservation insert of metal casting mould, it is characterised in that: including shell (1) and lid (2), the shell
(1) it is open-topped cavity body structure, is filled with thermal insulation material (3) in the cavity (11), the lid (2) is covered on shell
(1) opening face；The shell (1) is embedded in die ontology (4), and side and die ontology (4) are designed with the shape；The shell
(1) a part in bottom composition feeding a casting channel forms complete feeding a casting channel with die ontology (4).
2. the heat preservation insert of metal casting mould according to claim 1, it is characterised in that: the thermal insulation material (3)
For one of fire clay, ceramic powder, heat-preservation cotton and heat preservation sand.
3. the heat preservation insert of metal casting mould according to claim 2, it is characterised in that: the thermal insulation material (3)
For fire clay.
4. the heat preservation insert of metal casting mould according to claim 1 or 2, it is characterised in that: on the lid (2)
It is using fastener that lid (2) and die ontology (4) are fixed equipped with horizontal-extending installation trunnion (21).
5. the heat preservation insert of metal casting mould according to claim 1 or 2, it is characterised in that: the shell (1)
Wall thickness D is not less than 5mm.
6. the heat preservation insert of metal casting mould according to claim 1 or 2, it is characterised in that: the shell (1) with
The material of die ontology (4) is identical.
7. the heat preservation insert of metal casting mould of any of claims 1 or 2, it is characterised in that: the material of the shell (1)
For wolfram steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318104.1A CN109175253A (en) | 2018-11-07 | 2018-11-07 | A kind of heat preservation insert of metal casting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318104.1A CN109175253A (en) | 2018-11-07 | 2018-11-07 | A kind of heat preservation insert of metal casting mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109175253A true CN109175253A (en) | 2019-01-11 |
Family
ID=64942213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811318104.1A Pending CN109175253A (en) | 2018-11-07 | 2018-11-07 | A kind of heat preservation insert of metal casting mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109175253A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304612A (en) * | 2011-09-20 | 2012-01-04 | 唐炳涛 | High-temperature splicing and quenching forming process and device of ultrahigh-strength steel |
| CN202239577U (en) * | 2011-12-07 | 2012-05-30 | 重庆志成机械股份有限公司 | Low pressure casting die structure |
| CN202506796U (en) * | 2012-01-19 | 2012-10-31 | 长城汽车股份有限公司 | Aluminum casting die with formwork |
| EP2606995A2 (en) * | 2011-12-23 | 2013-06-26 | Martinrea Honsel Germany GmbH | Casting device for casting cylinder crank housings using a low-pressure process |
| CN204817941U (en) * | 2015-08-21 | 2015-12-02 | 广东富华铸锻有限公司 | Shrinkproof untwisting of wheel hub class foundry goods constructs |
| CN107598088A (en) * | 2017-09-25 | 2018-01-19 | 泰州康乾机械制造有限公司 | A kind of method for lifting thin-wall special-shaped aluminium alloy castings yield rate |
-
2018
- 2018-11-07 CN CN201811318104.1A patent/CN109175253A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304612A (en) * | 2011-09-20 | 2012-01-04 | 唐炳涛 | High-temperature splicing and quenching forming process and device of ultrahigh-strength steel |
| CN202239577U (en) * | 2011-12-07 | 2012-05-30 | 重庆志成机械股份有限公司 | Low pressure casting die structure |
| EP2606995A2 (en) * | 2011-12-23 | 2013-06-26 | Martinrea Honsel Germany GmbH | Casting device for casting cylinder crank housings using a low-pressure process |
| CN202506796U (en) * | 2012-01-19 | 2012-10-31 | 长城汽车股份有限公司 | Aluminum casting die with formwork |
| CN204817941U (en) * | 2015-08-21 | 2015-12-02 | 广东富华铸锻有限公司 | Shrinkproof untwisting of wheel hub class foundry goods constructs |
| CN107598088A (en) * | 2017-09-25 | 2018-01-19 | 泰州康乾机械制造有限公司 | A kind of method for lifting thin-wall special-shaped aluminium alloy castings yield rate |
Non-Patent Citations (3)
| Title |
|---|
| 山东省招远县志编纂委员会编: "《招远县志》", 30 November 1991, 华龄出版社 * |
| 徐润泽: "《粉末冶金电炉及设计》", 30 November 1990, 中南工业大学出版社 * |
| 扈剑华等: "《物理教育中的科学•技术•社会》", 31 October 2000 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |
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| RJ01 | Rejection of invention patent application after publication |